Bar mesh is the rating size of the square "hole" in the net ... so yes. (it should say it's a 1" mesh on the pkg).
You can only throw a net INSIDE Crocus Cr AFTER the first 50yds ... measured starting at the mouth & going into the creek. The first 50yds (from the mouth, upstream) is the prohibited territory. Beyond that first 50yds, you're good ... but, still can only use a one inch mesh net.
No cast nets in tributaries of Cumberland River ... EXCEPT Crocus & Marrowbone ... and in those creeks you can ONLY USE a 1" mesh net.
I assume that the main Cumberland River is prohibited territory, since it's designated as "Trout Waters".
That's just "MY" interpretation ... so I'd defer to the KDFWR, if I were considering using a cast net in those waters.
... pappy